Want to buy E85? There's an app for that.

The Renewable Fuels Association has launched a new application for Garmin and TomTom GPS units that that maps out the location of E85 (85% ethanol/15% gasoline) for users with flex-fuel vehicles, according to Department of Energy’s efficiency blog.
Using the Garmin navigation system, “FFV” owners can download station locations and program their device to direct them to nearby E85 stations. The Garmin application is available for download on ChooseEthanol.com.
The data comes directly from the United States Department of Energy’s Alternative Fuels and Advanced Vehicles Data Center (yeah, didn’t know there was such a center either), which has information on where to find all different types of transportation fuel across the country. The station location data will be updated quarterly.